Molecular Formula | C4H10O2 |
Molar Mass | 90.12 |
Density | 0.93g/mLat 25°C(lit.) |
Melting Point | -100 °C |
Boling Point | 135°C(lit.) |
Flash Point | 107.6°F |
Water Solubility | miscible |
Solubility | water: miscible |
Vapor Presure | 3.8 mm Hg ( 20 °C) |
Vapor Density | 3.1 (vs air) |
Appearance | Liquid |
Color | Clear, colorless |
Odor | Sweetish; mild, pleasant, ethereal. |
Exposure Limit | TLV-TWA skin 5 ppm (18.5 mg/m3) (ACGIH).. |
Maximum wavelength(λmax) | ['λ: 215 nm Amax: 1.00', , 'λ: 225 nm Amax: 0.50', , 'λ: 250 nm Amax: 0.20', , 'λ: 30 |
Merck | 14,3750 |
BRN | 1098271 |
pKa | 14.44±0.10(Predicted) |
Storage Condition | Store below +30°C. |
Stability | Stable. Readily forms explosive mixtures with air - note the wide explosion range. Vapour may travel considerable distance to a source of ignition. Flammable. Incompatible with strong acids, strong ba |
Explosive Limit | 1.8-15.7%(V) |
Refractive Index | n20/D 1.407(lit.) |
Physical and Chemical Properties | colorless liquid, almost odorless. "main use as solvent, as well as leather colorant, emulsifier, stabilizer, coating diluent, paint remover, etc. |
Use | Used as solvents, as well as leather colorants, emulsifiers, stabilizers, coating diluents, paint strippers, organic intermediates. |
Hazard Symbols | T - Toxic |
Risk Codes | R60 - May impair fertility R61 - May cause harm to the unborn child R10 - Flammable R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R20/22 - Harmful by inhalation and if swallowed. |
Safety Description | S53 - Avoid exposure - obtain special instructions before use. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
UN IDs | UN 1171 3/PG 3 |
WGK Germany | 1 |
RTECS | KK8050000 |
TSCA | Yes |
HS Code | 29094990 |
Hazard Class | 3 |
Packing Group | III |
Toxicity | Acute oral LD50 for guinea pigs 1,400 mg/kg, mice 2,451 mg/kg, rats 3,000 mg/kg, rabbits 3,100 mg/kg (quoted, RTECS, 1985). |
Raw Materials | 1-Butanol Ethylene Oxide Methyl alcohol Methyl alcohol Ethyl Alcohol |
Downstream Products | 2-Ethoxyethyl acetate |
olfactory Threshold | 0.58ppm |
freezing point | -70 ℃ |
LogP | 0.32 at 20℃ |
NIST chemical information | information provided by: webbook.nist.gov (external link) |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Introduction | ethylene glycol ether is a kind of ethylene glycol monoether compounds. The structure of ethylene glycol monoethers contains ether bonds, hydroxyl groups and different alkyl groups, which not only have water solubility, but also can dissolve organic molecules, synthetic polymers and natural polymers, widely used as industrial solvents, but also can be used as antifreeze, surfactants, printed circuit board adhesives, skin care additives have broad application prospects in industry. |
preparation | 46.0gMg(NO3)2 · 6H2O,13.1gCo(NO3)2 · 6H2O was dissolved in 1.4 ml of distilled water, and then 25% gLa(NO3)3 · 6H2O was added to obtain a salt solution. The resulting solution was mixed with by weight of concentrated ammonia water by concurrent dropwise addition, adjust the pH of the mixed solution to 9, react at atmospheric pressure and 40 ℃ for 1H, then cool to room temperature, then aging for 20H, after Conventional Suction filtration, washing, drying, roasting at 500 ℃ for 4H, the monolithic catalyst was obtained and pulverized to 40-60 mesh to obtain the desired catalyst, labeled as GM1. The prepared catalyst GM1 was placed in a tubular membrane in a continuous membrane reactor, and nitrogen was purged outside the membrane, the gas phase ethoxylation of ethylene oxide with ethanol in a molar ratio of 3: 1 was carried out. The ethanol was gasified in a pre-heater at 90 °c, and the temperature of the membrane reactor was maintained at 100 °c, the gas space velocity was 1.5 × 103ml · g-1 · h-1 to obtain ethylene glycol ethyl ether. |
Use | used as solvent, extraction agent, water repellent and organic intermediate used as nitrocelluloid, pseudo paint and other solvents, leather colorants and emulsion stabilizers The product is a low volatile solvent. It is used as a solvent for nitrocelluloid, lacquer, natural and synthetic resins, etc., and can also be used for leather colorants, emulsion stabilizers, paint diluents, paint strippers, textile fiber colorants, etc. In addition, it is also an intermediate for the production of acetate. used as solvents, as well as leather colorants, emulsifiers, stabilizers, coating diluents, paint strippers, organic intermediates, etc. solvents for nitrocellulose, resin, paint, etc. Leather colorant. Emulsion stabilizer. ethylene glycol ethyl ether is a low volatility solvent. This product is mainly used for the solvent of nitrocellulose paint and flying wing paint, can also be used as varnish coating agent, purification liquid, dye bath, water-soluble pigment and dye solution, refined leather solvent, and can increase the stability of latex. The product is a low volatile solvent. This product is mainly used for the solvent of nitrocellulose paint and flying wing paint, can also be used as varnish coating agent, purification liquid, dye bath, water-soluble pigment and dye solution, refined leather solvent, and can increase the stability of latex. |
production method | results from the reaction of ethylene oxide with ethanol. Ethylene oxide was slowly added to anhydrous ethanol at 25-30 °c until the temperature rose to 70 °c and allowed to stand overnight after completion of the reaction. Ethanol was recovered, neutralized with 10% sodium hydroxide solution to pH = 8, and fractionated to obtain a crude product. By distillation, the 133.5-135.5 °c fraction was collected to obtain the finished product. Consumption of ethylene oxide 863kg per ton of product, anhydrous ethanol 1020kg. |
category | flammable liquid |
toxicity grade | poisoning |
Acute toxicity | oral-rat LD50: 2125 mg/kg; Oral-mouse LD50: 2451 mg/kg |
stimulation data | Skin-rabbit 500 mg mild; Eye-rabbit 50 mg moderate |
explosive hazard characteristics | mixture of vapor and air can be exploded |
flammability hazard characteristics | flammable; Spicy and irritating smoke released from fire scene |
storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; Storage and transportation is separated from oxidant |
extinguishing agent | dry powder, carbon dioxide, water mist, foam |
Occupational Standard | TLV-TWA 19 mg/m3; Tel 40 mg/m3 |
spontaneous combustion temperature | 460 ° F. |
toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
immediate life-and health-threatening concentration | 500 ppm |
colorless liquid, almost odorless. The relative density was 0.9297. Boiling point 135 °c. Freezing point -70 °c. Flash point (Open Cup) 49 °c, (closed cup) 44 °c. Flow point <37. 78 °c. Spontaneous ignition point was 237. 78 ℃. Refractive index 4060. Viscosity (20 °c) 2.lmPa.s. Table sheet
Force (25 °c) 28.2mN/m. The vapor pressure was 0.706kPa. With water, ethanol, ether, acetone and liquid esters miscible, can dissolve a variety of oils, resins and waxes.
ethylene oxide reacts with ethanol, and the reaction product is recovered with ethanol, neutralized and fractionated with sodium hydroxide to obtain a crude product, refined, and a 133.5-135.5 ° C. Fraction is collected to obtain a finished product.
It can be used as a solvent for nitrocelluloid, lacquer, natural and synthetic resins and the like, and can also be used for leather colorants, emulsion stabilizers, paint diluents, paint strippers, dyeing agents for textile fibers and the like. In addition, it is also an intermediate for the production of acetate.